Patent Assignment
Reel/Frame 043628/0755
Assignment of Assignor's Interest
Recorded: 2017-09-19
Pages: 3
Assignee
IMMUNOGEN, INC.
830 WINTER STREET, WALTHAM, MASSACHUSETTS, 02451
Covered Property
(1)
Methods for the Acylation of Maytansinol
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.